Home / 1,379.47-2,057.92-1,341.81

Finding the Fourth Proportional to 1,379.47, 2,057.92 and 1,341.81

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Solution

The fourth proportional to 1,379.47, 2,057.92 and 1,341.81 is: 2,001.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379.47 : 2,057.92 = 1,341.81 : x
  2. Step 2: Convert to fraction form
    1,379.47/2,057.92 = 1,341.81/x
  3. Step 3: Cross multiply
    1,379.47x = 2,057.92 × 1,341.81
  4. Step 4: Simplify right side
    1,379.47x = 2,761,337.64
  5. Step 5: Solve for x
    x = 2,761,337.64/1,379.47
  6. Step 6: Final answer
    x = 2,001.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.